SATURDAY, FEBRUARY 2We're not letting the fact that we're pretty sure we discovered him during an episode of Dawson's Creek diminish the (other) fact that we've developed a major obsession with the music of blue-eyed, shaggy-haired Rhett Miller. The frontman of alt-country group the Old 97's has a moody, pensive sound that's tinged with pop sensibilities. Miller takes the stage tonight for a solo acoustic show at the Paradise Rock Club (967 Comm Ave, Boston, 617.562.8800); doors are at 8 p.m., the show's at 9, and Jennifer O'Connor opens. For general-admission tickets ($15), visit www.livenation.com.